sb/intel/common: Drop duplicate smi_set_eos()

We have equivalent southbridge_smi_set_eos().

Change-Id: I03a48f0ec9efac2a220aa4ca502a5f504d78c585
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69668
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/southbridge/intel/common/pmutil.c

@@ -176,18 +176,6 @@ void dump_tco_status(u32 tco_sts)
 	printk(BIOS_DEBUG, "\n");
 }
 
-/**
- * @brief Set the EOS bit
- */
-void smi_set_eos(void)
-{
-	u8 reg8;
-
-	reg8 = read_pmbase8(SMI_EN);
-	reg8 |= EOS;
-	write_pmbase8(SMI_EN, reg8);
-}
-
 void dump_alt_gp_smi_status(u16 alt_gp_smi_sts)
 {
 	int i;